Meet the kitties proving that outdoor adventuring isn't just for the dogs. Popular Instagram account Adventure Cats Org flaunts the bravest cats "living nine lives to the fullest," catting around tough terrain with just a harness and human companionship. Want to train your cat to love trekking through nature, too? Visit Adventure Cat's site for learning material on everything from outdoor safety to optimal cat backpacks. Yep, cat backpacks are a thing.

Scroll through to meet 21 of the cutest adventure kitties and be inspired to plan your own adventure with a feline friend.